45402173 has 2 divisors, whose sum is σ = 45402174. Its totient is φ = 45402172.

The previous prime is 45402151. The next prime is 45402179. The reversal of 45402173 is 37120454.

45402173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30946969 + 14455204 = 5563^2 + 3802^2 .

It is a cyclic number.

It is not a de Polignac number, because 45402173 - 2¹² = 45398077 is a prime.

It is a super-2 number, since 2×45402173² = 4122714626243858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45402179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22701086 + 22701087.

It is an arithmetic number, because the mean of its divisors is an integer number (22701087).

Almost surely, 2^45402173 is an apocalyptic number.

It is an amenable number.

45402173 is a deficient number, since it is larger than the sum of its proper divisors (1).

45402173 is an equidigital number, since it uses as much as digits as its factorization.

45402173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 45402173 is about 6738.1134600124. The cubic root of 45402173 is about 356.7458089531.

The spelling of 45402173 in words is "forty-five million, four hundred two thousand, one hundred seventy-three".